Is Aru Tabibito no Nikki hentai?
English title: A Traveller's Diary
No
Rated G (All Ages) on MyAnimeList and not tagged as Hentai.

ONA · 2003 · 6 episodes · G - All Ages
Adventure, Fantasy
Tortov Roddle is a man of few words on a journey through a calm and obscure new land, interacting with its inhabitants along the way. As he rides on his long-legged pig through the desert from town to town, he observes the interesting and quirky customs of the locals and reminisces about his past. [Written by MAL Rewrite]
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